Antenna assembly with electronic device

Abstract

The present disclosure provides an antenna assembly and an electronic device, and relates to the technical field of electronic devices. The antenna assembly comprises a first radiator, a feeding portion and a tuning circuit. The first radiator comprises a first radiation branch and a second radiation branch. The first end of the first radiation branch and the first end of the second radiation branch are electrically connected. The first radiation branch and the second radiation branch are arranged at an included angle. The absolute value of the length difference between the first radiation branch and the second radiation branch is less than a length threshold. The feeding portion is electrically connected with the first radiation branch. The tuning circuit is electrically connected with the second end of the second radiation branch. The absolute value of the length difference between the first radiation branch and the second radiation branch is less than the length threshold, thereby ensuring that the antenna assembly excites a horizontal and vertical mode main mode at different operating frequencies, and improving the radiation efficiency of the antenna. In addition, the matching of the signal frequency is ensured through the tuning circuit, which can further improve the radiation efficiency of the antenna.

Description

Technical Field

[0001] This disclosure relates to the field of electronic equipment technology, and more specifically, to an antenna assembly and an electronic device. Background Technology

[0002] With the continuous innovation of smartphone form factors and the rapid iteration of 5G / 6G communication technologies, antenna design has become a core technical element determining device communication quality and user experience. In the field of electronic devices, industrial design (ID) aesthetics and structural innovation are gradually becoming the dominant factors in product design. While pursuing visual symmetry and adopting a slit-symmetry design enhances the product's appearance, this design philosophy inevitably compresses the physical size of the radiator, leading to a decrease in antenna radiation efficiency.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] This disclosure provides an antenna assembly and an electronic device.

[0005] According to a first aspect of the present disclosure, an antenna assembly is provided, the antenna assembly comprising: a first radiator, the first radiator including a first radiating stub and a second radiating stub, a first end of the first radiating stub and a first end of the second radiating stub being electrically connected, the first radiating stub and the second radiating stub being arranged at an angle, and the absolute value of the length difference between the first radiating stub and the second radiating stub being less than a length threshold; a feed section, the feed section being electrically connected to the first radiating stub; and a tuning circuit, the tuning circuit being electrically connected to a second end of the second radiating stub.

[0006] In some embodiments of this disclosure, the length threshold ranges from 0mm to 3mm.

[0007] In some embodiments of this disclosure, the antenna assembly further includes: a second radiator, wherein a gap is provided between a first end of the second radiator and a second end of the first radiating branch, and the second end of the second radiator is grounded, such that the radiating branch from the grounding point of the second radiator to the gap constitutes a parasitic branch of the first radiator.

[0008] In some embodiments of this disclosure, the length of the second radiator ranges from 30 mm to 50 mm.

[0009] In some embodiments of this disclosure, the power supply unit includes: a feed source, a first capacitor, a second capacitor, and a first inductor. One end of the first capacitor is electrically connected to the first radiating branch, the other end of the first capacitor is electrically connected to one end of the second capacitor, the other end of the second capacitor is electrically connected to the feed source, one end of the first inductor is electrically connected between the first capacitor and the second capacitor, and the other end of the first inductor is grounded.

[0010] In some embodiments of this disclosure, the tuning circuit includes: an antenna tuning switch, a third capacitor, a second inductor, a first resistor, and a plurality of third inductors. One end of the third capacitor is electrically connected to the second radiating stub, and the other end of the third capacitor is electrically connected to one end of the second inductor. The other end of the second inductor is grounded. The antenna tuning switch is electrically connected to the end of the third capacitor away from the second radiating stub. One end of the plurality of third inductors and one end of the first resistor are both electrically connected to the antenna tuning switch, and the other ends of the plurality of third inductors and the other ends of the first resistor are both grounded.

[0011] In some embodiments of this disclosure, the distance between the electrical connection point of the power supply section and the first radiating branch and the second end of the second radiating branch ranges from 1 / 8λ. ε1 -1 / 3λ ε1 , λ ε1 The wavelength of the first radiator in the first frequency band is denoted as .

[0012] In some embodiments of this disclosure, the first radiating stub and the second radiating stub operate together in the second frequency band.

[0013] In some embodiments of this disclosure, the distance between the electrical connection point of the power supply section and the first radiating branch and the second end of the first radiating branch ranges from 1 / 8λ. ε2 -1 / 3λ ε2 , λ ε2 The operating wavelength of the first radiator in the third frequency band is denoted as .

[0014] In some embodiments of this disclosure, the operating frequency band of the first radiator includes a first frequency band, a second frequency band, and a third frequency band, wherein the first frequency band includes the B28 frequency band, the second frequency band includes the B5 frequency band, and the third frequency band includes the B8 frequency band.

[0015] In some embodiments of this disclosure, the length of the first radiating branch ranges from 25 mm to 32 mm.

[0016] According to a second aspect of the present disclosure, an electronic device is provided, including the antenna assembly described above.

[0017] The technical solutions provided by the embodiments of this disclosure can include the following beneficial effects: the antenna assembly includes a first radiator, a feed section, and a tuning circuit. The first radiator includes a first radiating stub and a second radiating stub. A first end of the first radiating stub and a first end of the second radiating stub are electrically connected. The first radiating stub and the second radiating stub are arranged at an angle. The absolute value of the length difference between the first radiating stub and the second radiating stub is less than a length threshold. The feed section is electrically connected to the first radiating stub. The tuning circuit is electrically connected to the second end of the second radiating stub. The absolute value of the length difference between the first radiating stub and the second radiating stub is less than a length threshold, thereby ensuring that the antenna assembly excites the transverse and longitudinal dominant modes at different operating frequencies, improving the antenna's radiation efficiency. Furthermore, by ensuring signal frequency matching through the tuning circuit, the antenna's radiation efficiency can be further improved.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0020] Figure 1 This is a side view of the phone after the seam is symmetrical.

[0021] Figure 2 This is a schematic diagram of an antenna radiation stub with an asymmetrical fracture.

[0022] Figure 3 This is a schematic diagram of a symmetrical antenna radiating stub.

[0023] Figure 4 This is a structural diagram of an antenna assembly according to an exemplary embodiment of the present disclosure.

[0024] Figure 5 This is a structural diagram of another antenna assembly illustrated according to an exemplary embodiment of the present disclosure.

[0025] Figure 6 This is a structural diagram of another antenna assembly illustrated according to an exemplary embodiment of the present disclosure.

[0026] Figure 7 This is a structural diagram of another antenna assembly illustrated according to an exemplary embodiment of the present disclosure.

[0027] Figure 8 This is a structural diagram of another antenna assembly illustrated according to an exemplary embodiment of the present disclosure.

[0028] Figure 9 This is a structural diagram of an antenna tuning switch according to an exemplary embodiment of the present disclosure.

[0029] Figure 10 This is an exemplary embodiment of the present disclosure illustrating an antenna assembly current mode distribution diagram.

[0030] Figure 11 This is another antenna component current mode distribution diagram illustrated according to an exemplary embodiment of the present disclosure.

[0031] Figure 12 This is another antenna assembly current mode distribution diagram shown according to an exemplary embodiment of the present disclosure.

[0032] Figure 13 This is a schematic diagram of the S-parameters of an antenna assembly according to an exemplary embodiment of the present disclosure.

[0033] Figure 14 This is a schematic diagram illustrating the efficiency of an antenna assembly according to an exemplary embodiment of the present disclosure.

[0034] Figure 15 This is a structural diagram of an electronic device according to an exemplary embodiment of the present disclosure.

[0035] Figure 16 This is a block diagram illustrating an electronic device according to an exemplary embodiment of the present disclosure.

[0036] Explanation of reference numerals in the attached figures:

[0037] 101. First fracture; 102. Second fracture; 200. Antenna assembly; 210. First radiator; 211. First radiating branch; 212. Second radiating branch; 220. Feed section; 221. Feed source; 222. First capacitor; 223. Second capacitor; 224. First inductor; 230. Tuning circuit; 231. Antenna tuning switch; 232. Third capacitor; 233. Second inductor; 234. First resistor; 235. Third inductor; 240. Second radiator; 241. Fracture. Detailed Implementation

[0038] Exemplary embodiments of this disclosure will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. Various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will become apparent upon understanding this disclosure. For example, the order of operations described herein is merely illustrative and is not limited to those orders set forth herein, but can be changed as will become apparent upon understanding this disclosure, except for operations that must be performed in a particular order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0039] The embodiments described below, which are examples of some of the embodiments of this disclosure, do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0040] In the field of electronic devices, industrial design (ID) aesthetics and structural innovation are gradually becoming the dominant factors in product design. To achieve visual symmetry, a design with fractal symmetry is employed. This disclosure uses a mobile phone as an example, but it is not limited to this. Figure 1 As shown, in order to achieve visual symmetry, that is, to set the first slit 101 and the second slit 102 symmetrically, the following will be used: Figure 2 The second fracture 102 shown is moved downwards as follows: Figure 3 The positions shown achieve symmetrical seam placement. For example, the first seam 101 is approximately 27.72 mm from the top of the phone. When the seams are not symmetrical, the second seam 102 is approximately 39 mm from the bottom of the phone. To achieve symmetrical seam placement, the second seam 102 is positioned approximately 29 mm from the bottom of the phone, thus achieving visual symmetry. In other words, the effective length of the side radiating stub of the bottom bezel antenna (e.g., a large T-antenna) is reduced from 39 mm to 29 mm, thus shortening the radiating stub of the bottom bezel antenna by 10 mm. Figure 1 As shown, the antenna current distribution is affected by the stub length, altering the antenna current path. Furthermore, the effective bandwidth of the antenna is shortened (for example, during transmission in the B28 band, the maximum signal attenuation is 1 dB), resulting in decreased radiation efficiency.

[0041] To address the aforementioned problems, this disclosure provides an antenna assembly 200, comprising a first radiator 210, a feed section 220, and a tuning circuit 230. The first radiator 210 includes a first radiating stub 211 and a second radiating stub 212. A first end of the first radiating stub 211 and a first end of the second radiating stub 212 are electrically connected. The first radiating stub 211 and the second radiating stub 212 are arranged at an angle, and the absolute value of the length difference between the first radiating stub 211 and the second radiating stub 212 is less than a length threshold. The feed section 220 is electrically connected to the first radiating stub 211. The tuning circuit 230 is electrically connected to the second end of the second radiating stub 212. Because the absolute value of the length difference between the first radiating stub 211 and the second radiating stub 212 is less than the length threshold, this ensures that the antenna assembly 200 excites the transverse and longitudinal dominant modes at different operating frequencies, improving the antenna's radiation efficiency and solving the problem of reduced effective bandwidth. Furthermore, by ensuring signal frequency matching through the tuning circuit 230, the antenna's radiation efficiency can be further improved.

[0042] The specific implementation methods of the embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0043] Figure 4 This is a structural diagram of an antenna assembly according to an exemplary embodiment of the present disclosure. Figure 4 As shown, the antenna assembly 200 may include a first radiator 210, a feed section 220, and a tuning circuit 230. The feed section 220 is used to introduce radio frequency signals from an electronic device from a transmission line into the radiating portion of the antenna assembly 200 (e.g., the first radiator 210). The tuning circuit 230 is used to enable the antenna assembly 200 to operate within a specific frequency range, thereby optimizing the performance of the antenna assembly 200. In other words, the tuning circuit 230 ensures that the antenna assembly 200 achieves optimal radiation efficiency and frequency response within the desired operating frequency band.

[0044] The first radiator 210 may include a first radiating branch 211 and a second radiating branch 212. The first end of the first radiating branch 211 and the first end of the second radiating branch 212 are electrically connected. The first radiating branch 211 and the second radiating branch 212 are arranged at an angle, and the absolute value of the length difference between the first radiating branch 211 and the second radiating branch 212 is less than a length threshold. The power supply section 220 is electrically connected to the first radiating branch 211; the tuning circuit 230 is electrically connected to the second end of the second radiating branch 212.

[0045] The present disclosure does not specifically limit the size of the included angle formed between the first radiating branch 211 and the second radiating branch 212. For example, the included angle between the first radiating branch 211 and the second radiating branch 212 is 90°, that is, the first radiating branch 211 and the second radiating branch 212 are arranged perpendicularly.

[0046] The absolute value of the length difference between the first radiating stub 211 and the second radiating stub 212 is less than a length threshold, which can change the operating mode of the antenna assembly 200 and achieve transverse and longitudinal mode balance. The balance of transverse and longitudinal modes helps to improve the overall performance of the antenna, ensure the quality and efficiency of signal transmission, and thus improve the radiation efficiency of the antenna.

[0047] It should be noted that, as Figure 2 As shown, when the length of the side radiating stub of the bottom frame antenna is the original 39mm, the main excitation mode of the bottom frame antenna is the longitudinal mode. However, the absolute value of the length difference between the first radiating stub 211 and the second radiating stub 212 of this disclosure is less than the length threshold, which can realize that the main excitation modes of the antenna assembly 200 are longitudinal mode, transverse mode and mixed mode.

[0048] In some exemplary embodiments, the length threshold ranges from 0mm to 3mm, including endpoint values. For example, the length threshold ranges from 0mm to 1mm. As another example, the length threshold can be any value among 0mm, 1mm, 2mm, and 3mm.

[0049] For example, the difference between the second radiating stub 212 and the first radiating stub 211 is 1 mm, and the length threshold is 1.1 mm. The absolute value of the length difference between the first radiating stub 211 and the second radiating stub 212 is less than the length threshold. This disclosure adjusts the length of the second radiating stub 212 to be consistent with the length of the first radiating stub 211, thereby ensuring that the antenna assembly 200 excites the transverse and longitudinal main modes at different operating frequencies, thus improving the radiation efficiency of the antenna.

[0050] In some exemplary embodiments, the length of the first radial branch 211 ranges from 25mm to 32mm, including the endpoint values. The length of the first radial branch 211 is related to... Figure 1 The distance between the first slit and the top of the phone is appropriate, meaning the length of the first radial branch 211 is a length that allows for symmetrical slits. For example, the length of the first radial branch 211 can be any value among 25mm, 26mm, 27mm, 28mm, 30mm, and 32mm. Another example is a length of 29mm. This disclosure achieves symmetrical slits by adjusting the length of the first radial branch 211, thus satisfying the visual requirement for symmetrical aesthetics.

[0051] For example, the difference between the second radiating stub 212 and the first radiating stub 211 is 0 mm, and the length threshold is 0.5 mm. The electrical connection between the feed section 220 and the first radiating stub 211 is located near the first end of the first radiating stub 211, that is, the feed point is located at the lower left corner of the first radiator 210. For example, the ratio of the distance of the feed potential from the first end of the first radiating stub 211 to the total length of the first radiating stub 211 is in the range of 0.01-0.5, including the endpoint value. This disclosure adjusts the length of the second radiating stub 212 to be consistent with the length of the first radiating stub 211, and sets the feed position to be near the first end of the first radiating stub 211, thereby ensuring that the antenna assembly 200 excites the transverse and longitudinal main modes at different operating frequencies, improving the radiation efficiency of the antenna.

[0052] In this embodiment, the absolute value of the length difference between the first radiating stub 211 and the second radiating stub 212 is less than a length threshold, thereby ensuring that the antenna assembly 200 excites the transverse and longitudinal main modes at different operating frequencies, thus improving the antenna's radiation efficiency. Furthermore, by ensuring signal frequency matching through the tuning circuit 230, the antenna's radiation efficiency can be further improved.

[0053] In some exemplary embodiments, such as Figure 5As shown, the antenna assembly 200 may further include a second radiator 240. A gap 241 is provided between the first end of the second radiator 240 and the second end of the first radiating branch 211. The second end of the second radiator 240 is grounded, so that the radiating branch from the grounding point of the second radiator 240 to the gap 241 constitutes a parasitic branch of the first radiator 210.

[0054] The length of the second radiator 240 is not specifically limited in this embodiment. It can be set according to the actual application scenario and specific application experience. For example, the length of the second radiator 240 ranges from 30mm to 50mm. For instance, the length of the second radiator 240 can be any value among 30mm, 34mm, 40mm, 42mm, 44mm, 46mm, 48mm, and 50mm. As another example, the length of the second radiator 240 is 42mm.

[0055] In some embodiments, in order to improve the performance of the B5 and B8 bands, the length of the second radiator 240 is increased to 42 mm. The second radiator 240 acts as a parasitic stub, and its resonant point (resonant frequency) is 0.99 GHz. The bandwidth of the B5 and B8 bands is increased, thereby improving the performance of the antenna assembly 200.

[0056] In this embodiment, the second radiator 240 can serve as a parasitic branch to enhance the radiation performance of the first radiator 210. Furthermore, the second radiator 240 can also achieve isolated grounding, thereby avoiding mutual interference between frequency bands.

[0057] In some exemplary embodiments, such as Figure 6 As shown, the feed section 220 may include a feed source 221, which is electrically connected to the first radiating stub 211. The feed source 221 is used to introduce radio frequency signals from electronic devices from the transmission line into the first radiating stub 211 of the antenna assembly 200, or to receive signals from the first radiating stub 211, thereby realizing signal transmission and reception.

[0058] In other exemplary embodiments, such as Figure 7 As shown, the power supply section 220 may include a feed source 221, a first capacitor 222, a second capacitor 223, and a first inductor 224. One end of the first capacitor 222 is electrically connected to the first radiating branch 211, and the other end of the first capacitor 222 is electrically connected to one end of the second capacitor 223. The other end of the second capacitor 223 is electrically connected to the feed source 221. One end of the first inductor 224 is electrically connected between the first capacitor 222 and the second capacitor 223, and the other end of the first inductor 224 is grounded.

[0059] The embodiments disclosed herein utilize the coordinated operation of the feed source 221, the first capacitor 222, the second capacitor 223, and the first inductor 224 to adjust the impedance matching, frequency response, and radiation characteristics of the antenna assembly 200, thereby improving the signal transmission quality.

[0060] In some exemplary embodiments, the tuning circuit 230 may include an antenna tuning switch 231, a third capacitor 232, a second inductor 233, a first resistor 234, and a plurality of third inductors 235. One end of the third capacitor 232 is electrically connected to the second radiating stub 212, and the other end of the third capacitor 232 is electrically connected to one end of the second inductor 233. The other end of the second inductor 233 is grounded. The antenna tuning switch 231 is electrically connected to the end of the third capacitor 232 away from the second radiating stub 212. One end of the plurality of third inductors 235 and one end of the first resistor 234 are both electrically connected to the antenna tuning switch 231, and the other ends of the plurality of third inductors 235 and the other end of the first resistor 234 are both grounded.

[0061] In this embodiment of the disclosure, each branch containing the third inductor 235 is a tuning branch. The antenna tuning switch 231 can control the conduction and disconnection of one or more tuning branches, thereby ensuring that the antenna assembly 200 can achieve optimal radiation efficiency and frequency response in the required operating frequency band.

[0062] In some embodiments, the resistance value of the first resistor 234 can be 0 Ω (ohms). It should be noted that the resistance value of the first resistor 234 can be set according to the actual application scenario and specific application experience. For example, when a larger resistance value is required for the first resistor 234, it can be formed by connecting multiple second resistors in series; that is, the first resistor 234 includes multiple second resistors connected in series.

[0063] In some embodiments, the antenna tuning switch 231 can be an antenna tuning switch 231 of model number QAT5569.

[0064] In some embodiments, the antenna tuning switch 231 includes a plurality of switches, wherein one end of the plurality of switches is connected together and electrically connected to the end of the third capacitor 232 away from the second radiating branch 212, and the other end of the plurality of switches is electrically connected to a plurality of third inductors 235 and a first resistor 234 respectively, and the ends of the plurality of third inductors 235 and the first resistor 234 away from the antenna tuning switch 231 are all grounded.

[0065] The embodiments disclosed herein utilize the antenna tuning switch 231, the third capacitor 232, the second inductor 233, the first resistor 234, and multiple third inductors 235 to work together, enabling the antenna assembly 200 to operate within a specific frequency range and achieve optimal radiation performance, thereby improving communication quality and reliability.

[0066] In some exemplary embodiments, the distance from the electrical connection point between the power supply section 220 and the first radiating stub 211 to the second end of the second radiating stub 212 ranges from 1 / 8λ. ε1 -1 / 3λ ε1 , λ ε1 The operating wavelength of the first radiator 210 in the first frequency band.

[0067] For example, when the first frequency band is the B28 frequency band, the distance between the electrical connection point of the power supply section 220 and the first radiating stub 211 and the second end of the second radiating stub 212 is in the range of 1 / 4λ. ε1 , λ ε1 The first radiator 210 operates at its operating wavelength in the first frequency band. In other words, the first radiator 210 operates in 1 / 4 mode, and the antenna assembly 200 operates with transverse mode excitation characteristics.

[0068] In some other exemplary embodiments, the first radiating stub 211 and the second radiating stub 212 operate in a mixed mode in the second frequency band. That is, in the second frequency band, the first radiating stub 211 and the second radiating stub 212 operate in a mixed mode. The second frequency band is the B5 band.

[0069] In some further exemplary embodiments, the distance from the electrical connection point between the power supply section 220 and the first radiating branch 211 to the second end of the first radiating branch 211 ranges from 1 / 8λ. ε2 -1 / 3λ ε2 , λ ε2 The operating wavelength of the first radiator 210 in the third frequency band.

[0070] For example, when the third frequency band is the B8 frequency band, the distance between the electrical connection point of the power supply unit 220 and the first radiating stub 211 and the second end of the first radiating stub 211 is in the range of 1 / 4λ. ε2 , λ ε2 This refers to the operating wavelength of the first radiator 210 in the third frequency band. In other words, the first radiator 210 operates in 1 / 4 mode, and the antenna assembly 200 operates with longitudinal mode excitation characteristics.

[0071] For example, the operating frequency band of the first radiator 210 includes a first frequency band, a second frequency band, and a third frequency band. The first frequency band includes the B28 frequency band, the second frequency band includes the B5 frequency band, and the third frequency band includes the B8 frequency band.

[0072] The antenna assembly 200 of this embodiment achieves ID gap symmetry by exciting the main mode of the transverse and longitudinal modes and tuning the resonant point of the parasitic stub (second radiator 240) to the target operating frequency band, thereby forming a coupled resonance effect with the main radiator (first radiator 210) and thus improving the radiation efficiency of the antenna.

[0073] For example, such as Figures 10 to 12 As shown, Figures 10 to 12 The distribution of the current modes of antenna component 200 under ID gap symmetry at different frequency points is shown. The red, green and blue arrows all represent current. The current density represented by the red arrow is greater than that represented by the green arrow, and the current density represented by the green arrow is greater than that represented by the blue arrow.

[0074] like Figure 10 As shown, when the antenna assembly 200 operates at 750 MHz (megahertz) in the B28 band, the feed section 220 feeds to the bottom slot (the slot at the second end of the second radiating stub 212) in 1 / 4 mode. That is, the current starts from the electrical connection between the feed section 220 and the first radiating stub 211, accumulates along the first radiator 210, and reaches the second end of the second radiating stub 212. Figure 11 As shown, when the antenna assembly 200 operates at 850MHz in the B5 band, the feed section 220 feeds to the bottom slot and the side slot (the gap 241 between the first radiating stub 211 and the second radiator 240), respectively, forming a hybrid mode. Figure 12 As shown, when the antenna assembly 200 operates at 950MHz in the B8 band, the feed section 220 feeds to the 1 / 4 mode of the side slot. The current starts from the electrical connection between the feed section 220 and the first radiating stub 211, accumulates along the first radiator 210, and ends at the second end of the first radiating stub 211.

[0075] In this embodiment, the first radiating stub 211 and the second radiating stub 212 are aligned, and the feed is placed in the lower left corner. When the antenna assembly 200 operates at a frequency of 750MHz, the excitation mode is transverse mode excitation. When the antenna assembly 200 operates at a frequency of 950MHz, the excitation mode is longitudinal mode excitation. In this embodiment, the transverse and longitudinal modes are balanced, and both can be used as the main radiating modes.

[0076] When B28TX is fully off (antenna tuning switch 231 is fully off), the first radiating stub 211 is short, therefore no side grounding reduction is needed, thus reducing one grounding path loss. To improve performance in the B5 and B8 bands, the second radiator 240 (parasitic stub) is increased to 42mm. Figure 13 The diagram shows the reflection coefficient (S11) of antenna component 200. The horizontal axis represents frequency in gigahertz (GHz), and the vertical axis represents decibels in dB.

[0077] In Figure 13In this configuration, the resonant point of the second radiator 240 is tuned to 0.99 GHz, increasing the bandwidth of the B5 band by more than 0.5 dB and the B8 band by more than 1 dB. This reduces the loss caused by the shortening of the first radiating stub 211. The active TPR (transmission power ratio) in the B28 band can reach 18 dB, and the active TIS combiner can reach -95.9 dB.

[0078] like Figure 14 The diagram shown illustrates the efficiency of antenna assembly 200. The horizontal axis represents frequency in gigahertz (GHz), and the vertical axis represents decibels (dB). Figure 14 As can be seen from this, the antenna assembly 200 disclosed herein has improved operating efficiency in the B5, B8 and B28 frequency bands, and significantly reduced radiation loss.

[0079] An exemplary embodiment of this disclosure also provides an electronic device that may include the antenna assembly described above; and a processor for determining the current operating state of the antenna assembly.

[0080] Figure 15 This is a structural diagram of an electronic device according to an exemplary embodiment of the present disclosure. Figure 15 As shown, the electronic device includes an antenna assembly, a second radiator located on the side of the electronic device, a first radiating branch of the first radiator located on the side of the electronic device, and a second radiating branch of the first radiator located at the bottom of the electronic device. It should be noted that... Figure 15 Only a schematic diagram of some of the electronic devices is shown.

[0081] For example, electronic devices may be mobile phones, tablets, e-readers, MP3 players, MP4 players, laptops, in-vehicle systems or desktop computers, portable terminals, laptop terminals, desktop terminals, action cameras, drones, monitor cameras and similar products.

[0082] It should be noted that the electronic device in this embodiment can be a foldable electronic device or a flat-screen electronic device (non-foldable electronic device).

[0083] Of course, in practical applications, the position of the antenna assembly can be flexibly adjusted according to factors such as the specific shape, size, internal structure and antenna performance requirements of the electronic device, and this disclosure does not limit this.

[0084] Figure 16 This is a block diagram illustrating an electronic device according to an exemplary embodiment of the present disclosure. (Refer to...) Figure 16The electronic device 1600 may also include one or more of the following components: a processing component 1602, a memory 1604, a power supply component 1606, a multimedia component 1608, an audio component 1610, an input / output (I / O) interface 1612, a sensor component 1614, and a communication component 1616.

[0085] Processing component 1602 typically controls the overall operation of electronic device 1600, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 1602 may include one or more processors 1620 to execute instructions. Furthermore, processing component 1602 may include one or more modules to facilitate interaction between processing component 1602 and other components. For example, processing component 1602 may include a multimedia module to facilitate interaction between multimedia component 1608 and processing component 1602.

[0086] Memory 1604 is configured to store various types of data to support the operation of device 1600. Examples of this data include instructions for any application or method operating on electronic device 1600, contact data, phonebook data, messages, pictures, videos, etc. Memory 1604 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0087] Power supply component 1606 provides power to various components of electronic device 1600. Power supply component 1606 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 1600.

[0088] Multimedia component 1608 includes a screen that provides an output interface between the electronic device 1600 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 1608 includes a front-facing camera and / or a rear-facing camera. When the device 1600 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0089] Audio component 1610 is configured to output and / or input audio signals. For example, audio component 1610 includes a microphone (MIC) configured to receive external audio signals when electronic device 1600 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 1604 or transmitted via communication component 1616. In some embodiments, audio component 1610 also includes a speaker for outputting audio signals.

[0090] I / O interface 1612 provides an interface between processing component 1602 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0091] Sensor assembly 1614 includes one or more sensors for providing state assessments of various aspects of electronic device 1600. For example, sensor assembly 1614 may detect the on / off state of device 1600, the relative positioning of components such as the display and keypad of electronic device 1600, changes in position of electronic device 1600 or a component of electronic device 1600, the presence or absence of user contact with electronic device 1600, the orientation or acceleration / deceleration of electronic device 1600, and temperature changes of electronic device 1600. Sensor assembly 1614 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 1614 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 1614 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0092] Communication component 1616 is configured to facilitate wired or wireless communication between electronic device 1600 and other devices. Electronic device 1600 can access wireless networks based on communication standards, such as WiFi, 3G, 4G, 5G, other communication standards, or combinations thereof. In some embodiments of this disclosure, communication component 1616 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In some embodiments of this disclosure, communication component 1616 further includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0093] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

[0094] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. An antenna assembly, characterized in that, The antenna assembly includes: A first radiator, comprising a first radiating branch and a second radiating branch, wherein a first end of the first radiating branch and a first end of the second radiating branch are electrically connected, the first radiating branch and the second radiating branch are arranged at an angle, and the absolute value of the length difference between the first radiating branch and the second radiating branch is less than a length threshold. The power supply unit is electrically connected to the first radiating branch; A tuning circuit, which is electrically connected to the second end of the second radiating branch.

2. The antenna assembly according to claim 1, characterized in that, The length threshold ranges from 0mm to 3mm.

3. The antenna assembly according to claim 1, characterized in that, The antenna assembly also includes: A second radiator has a gap between its first end and the second end of the first radiating branch. The second end of the second radiator is grounded, such that the radiating branch from the grounding point of the second radiator to the gap constitutes a parasitic branch of the first radiator.

4. The antenna assembly according to claim 3, characterized in that, The length of the second radiator ranges from 30mm to 50mm.

5. The antenna assembly according to claim 1, characterized in that, The power supply unit includes: a feed source, a first capacitor, a second capacitor, and a first inductor. One end of the first capacitor is electrically connected to the first radiating branch, the other end of the first capacitor is electrically connected to one end of the second capacitor, the other end of the second capacitor is electrically connected to the feed source, one end of the first inductor is electrically connected between the first capacitor and the second capacitor, and the other end of the first inductor is grounded.

6. The antenna assembly according to claim 1, characterized in that, The tuning circuit includes: an antenna tuning switch, a third capacitor, a second inductor, a first resistor, and multiple third inductors. One end of the third capacitor is electrically connected to the second radiating stub, and the other end of the third capacitor is electrically connected to one end of the second inductor. The other end of the second inductor is grounded. The antenna tuning switch is electrically connected to the end of the third capacitor away from the second radiating stub. One end of each of the multiple third inductors and one end of the first resistor are electrically connected to the antenna tuning switch, and the other ends of each of the multiple third inductors and the other end of the first resistor are grounded.

7. The antenna assembly according to claim 1, characterized in that, The distance between the electrical connection point of the power supply unit and the first radiating branch and the second end of the second radiating branch ranges from 1 / 8λ. ε1 -1 / 3λ ε1 , λ ε1 The wavelength of the first radiator in the first frequency band is denoted as .

8. The antenna assembly according to claim 1, characterized in that, The first and second radiating stubs operate together in the second frequency band.

9. The antenna assembly according to claim 1, characterized in that, The distance between the electrical connection point of the power supply unit and the first radiating branch and the second end of the first radiating branch ranges from 1 / 8λ. ε2 -1 / 3λ ε2 , λ ε2 The operating wavelength of the first radiator in the third frequency band is denoted as .

10. The antenna assembly according to any one of claims 1 to 9, characterized in that, The operating frequency band of the first radiator includes a first frequency band, a second frequency band, and a third frequency band. The first frequency band includes the B28 frequency band, the second frequency band includes the B5 frequency band, and the third frequency band includes the B8 frequency band.

11. The antenna assembly according to claim 1, characterized in that, The length of the first radiating branch ranges from 25mm to 32mm.

12. An electronic device, characterized in that, The electronic device includes the antenna assembly as described in any one of claims 1 to 11.

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